Prepare yourselves, "Legend of Korra" fans. The physical world and the spirit world will soon collide on the Emmy-nominated Nickelodeon series -- posing the biggest threat yet for Korra -- when Book 2 premieres on Sept. 13. And we have an exclusive sneak peek at the action for you now!Sure, Republic City is free of Amon and the Equalists thanks to Korra, but now it's been six months, and "she and her friends will face impossible new dangers," the promo reveals.

Korra -- the only one who can bend water, earth, fire, and now air -- is not sure she can handle all the responsibility. "Maybe I'm not ready to be the Avatar," she confesses. But her journey has just begun, and with benders under attack and the spirit world out of whack, it's her job to fix things.

And for the first time ever, the headstrong protagonist will venture into the parallel plane of the spirit world, where all the immortal, supernatural, and spiritual entities exist."The Legend of Korra" Book 2 premieres Friday, 9/13 at 7 PM on Nickelodeon.

Yeah, now we have to wait another week, but hey!, we've been waiting for Book 2 for more than a year, 4 weeks ain't nothing

Good! Haha I hated being the skeptical one, but I thought the random post with no actual confirmation behind it sounded unreliable. Friday night works better for me anyway :> Now the official countdown can BEGIN! Four weeks almost to the day - I'm so excited!

So are copyright laws preventing livestream this time around? I know livestreams are illegal as hell but still, people got around it with book 1. *shrug* Oh well. Hopefully I'll find a way to get my cable hooked up before then anyway.